Fedora 11 Preview Release has been announced with a large number of new features, even more so than previous general releases. This includes Presto (delta RPM updates reducing bandwidth usage over 80% typically), automatic font and mime installer via PackageKit, Nouveau as the default driver for Nvidia cards (3D support is not mature and disabled however), simplified Anaconda text mode installation and minimal installation support, automatic Bug Reporting tool, native access to Microsoft Exchange using OpenChange, Firefox 3.1 and ThunderBird 3.0, Windows Cross Compiler (MinGW and a comprehensive set of cross compiled libraries), Ext4 as the default filesystem, experimental support for the next generation Btrfs filesystem, improved I18N with the switch to IBus input system by default, much improved Kernel Mode Support, many virtualization and security improvements, RPM 4.7, GNOME 2.26, KDE 4.2, Xfce 4.6, Linux Kernel 2.6.29, Python 2.6. GCC 4.4 and several other changes.